High-efficiency filament helical winding devices

ABSTRACT

The present disclosure provides a high-efficiency filament helical winding device, which includes a frame body and a plurality of multi-filar guides. The frame body is provided with a through-hole, the plurality of multi-filar guides distributed in a circumference along a center of the through-hole are rotationally connected to the frame body and filament is extended out from each multi-filar guide in the plurality of multi-filar guides, and the frame body is provided with a first driving mechanism that drives each multi-filar guide to rotate.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.17/805,463, filed on Jun. 5, 2022, which claims priority to ChinesePatent Application No. 202110633540.3 filed on Jun. 7, 2021, thecontents of which are hereby incorporated by reference to its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of filament windingtechnology, and in particular, to high-efficiency filament helicalwinding devices.

BACKGROUND

After years of development, pressure vessels have been widely used inaerospace, medical care, and daily resident lives. With continuousemergence of new materials and new technology, the pressure vessels aredeveloping in a lightweight and high-intensity direction. Filamentwinding is one of important steps in the molding process of the pressurevessels, and helical winding technology is more common. Windingefficiency and winding quality of directly determine productivity,performance, and service life of components such as the pressurevessels.

Thereby, it is desirable to provide high-efficiency filament helicalwinding devices to improve the winding efficiency and winding quality.

SUMMARY

One aspect of some embodiments of the present disclosure provides ahigh-efficiency helical winding device. The device includes a frame bodyand a plurality of multi-filar guides, the frame body is provided with athrough-hole, the plurality of multi-filar guides distributed in acircumference along the center of the through-hole are rotationallyconnected to the frame body, and filament is extended out from eachmulti-filar guide in the plurality of multi-filar guides. The frame bodyis provided with a first driving mechanism that drives each multi-filarguide to rotate. Each multi-filar guide is rotationally connected to theframe body through a coupling sleeve, the coupling sleeve isrotationally connected to the frame body, each multi-filar guide isslidably connected to the coupling sleeve. The first driving mechanismis connected to the coupling sleeve to drive each multi-filar guide torotate. The device further includes a telescopic mechanism that driveseach multi-filar guide to slide along the coupling sleeve. Thetelescopic mechanism includes a plurality of shifting fork mechanismsand a second driving mechanism, and each multi-filar guide is connecteda shifting fork mechanism in the plurality of shifting fork mechanisms,the shifting fork mechanism includes a shifting fork and a guide rod,the guide rod is fixedly connected to the frame body, the shifting forkis slidably connected to the guide rod, and one end of the shifting forkis rotationally connected to the multi-filar guide. The second drivingmechanism is connected to the shifting folk to drive the shifting folkto slide along the guide rod. The second driving mechanism includes asecond driving element, a second gear transmission mechanism, and aplurality of lead screw and nut mechanisms, each shifting fork isconnected to a lead screw and nut mechanism, and one end of the leadscrew in the lead screw and nut mechanism is fixedly connected to theshifting fork, and nut in the lead screw and nut mechanism isrotationally connected to the frame body. The second gear transmissionmechanism includes a second gear ring and a plurality of secondconnecting columns. The second gear ring is rotationally connected tothe frame body, and the second gear ring is driven to rotate through thesecond driving element. The plurality of second connecting columns arerotationally connected to the frame body, each lead screw and nutmechanism is connected to a second connecting column in the plurality ofsecond connecting columns, the second connecting column is driven torotate through rotation of the second gear ring, the second connectingcolumn drives the multi-filar guide to expand and contract, one end ofthe second connecting column is provided with a second connecting gearmeshing with the second gear ring, and the other end of the secondconnecting column is provided with a second transmission gear meshingwith the external gear of the nut. The second gear ring is rotationallyconnected to the frame body through the slewing bearing, the second gearring is slidably connected to the slewing bearing, a third drivingmechanism is arranged between the second gear ring and the slewingbearing, and the second gear ring is driven to slide axially through thethird driving mechanism. The plurality of second connecting columns aredivided into at least two groups, the second gear ring is meshed withsecond connecting gears on one or more groups of second connectingcolumns through the movement of the second gear ring to drive thecorresponding multi-filar guide to expand and contract. The seconddriving element is connected to the slewing bearing.

In some embodiments, the multi-filar guide may be a hollow rod with twoopenings at both ends, the filament may enter the hollow rod from anopening at one end and extend out from another opening at the other end,the other end of the hollow rod may be flat, and the shape of the otherend may be the same as a cross-section shape of the filament.

In some embodiments, the first driving mechanism may include a firstdriving element and a first gear transmission mechanism, and the firstdriving element may be connected to each multi-filar guide through thefirst gear transmission mechanism to drive each multi-filar guide torotate.

In some embodiments, the first gear transmission mechanism may include afirst gear ring and a plurality of first connecting columns, the firstgear ring may be rotationally connected to the frame body, and the firstdriving element may be connected to the first gear ring to drive thefirst gear ring to rotate, the plurality of first connecting columns maybe rotationally connected to the frame body, each multi-filar guide maybe connected to a first connecting column in the plurality of firstconnecting columns. The first connecting column may be driven to rotatethrough rotation of the first gear ring, the first connecting column maydrive the multi-filar guide to rotate, one end of the first connectingcolumn may be provided with a first connecting gear meshing with thefirst ring gear, and the other end of the first connecting column may beprovided with a first transmission gear meshing with a first drivinggear on the multi-filar guide.

In some embodiments, the first gear ring may be a double gear ring,inner gear of which may be meshed with the first connecting gear, outergear of which may be meshed with the first driving element through afirst worm or gears, and the first worm may be rotationally connected tothe frame body.

In some embodiments, the second driving element may be meshed with gearsof the slewing bearing through gears or a second worm to drive thesecond gear ring to rotate.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure will be further described in the form ofexemplary embodiments, which will be described in detail by theaccompanying drawings. These embodiments are not restrictive, in theseembodiments, the same number represents the same structure, wherein:

FIG. 1 is a schematic diagram of a helical winding device according tosome embodiments of the present disclosure;

FIG. 2 is a schematic diagram of a helical winding device according toanother embodiments of the present disclosure;

FIG. 3 is an axonometric view of a helical winding device in a directionaccording to some embodiments of the present disclosure;

FIG. 4 is a sectional view of plane A in FIG. 3 according to someembodiments of the present disclosure;

FIG. 5 is a partial enlarged view of part A in FIG. 4 according to someembodiments of the present disclosure;

FIG. 6 is a partial enlargement view of part B in FIG. 4 according tosome embodiments of the present disclosure;

FIG. 7 is an axonometric view of the helical winding device in anotherdirection according to some embodiments of the present disclosure;

FIG. 8 is a sectional view of plane B in FIG. 7 according to someembodiments of the present disclosure;

FIG. 9 is a partial enlargement view of part C in FIG. 8 according tosome embodiments of the present disclosure;

FIG. 10 is a partial enlargement view of part D in FIG. 8 according tosome embodiments of the present disclosure;

FIG. 11 is a structural diagram of a shifting fork mechanism accordingto some embodiments of the present disclosure;

FIG. 12 is a schematic diagram of a control system according to someembodiments of the present disclosure.

DETAILED DESCRIPTION

In the following detailed description, numerous specific details are setforth by way of examples in order to provide a thorough understanding ofthe relevant disclosure. Obviously, drawings described below are onlysome examples or embodiments of the present disclosure. A person skilledin the art, without further creative efforts, may apply the presentdisclosure to other similar scenarios according to these drawings.Unless it is obvious or explained from the language environment orotherwise stated, the same number in the drawings denotes the samestructure or operation.

It will be understood that the terms “system,” “device,” “unit,” and/or“module” used herein are one method to distinguish different components,elements, parts, sections, or assemblies of different levels. However,if other words may achieve the same purpose, the words may be replacedby other expressions.

The terminology used herein is for the purposes of describing particularexamples and embodiments only and is not intended to be limiting. Asused herein, the singular forms “a,” “an,” and “the” may be intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. In general, the terms “comprise” and “include” merely promptto include steps and elements that have been clearly identified, thesteps and units do not constitute an exclusive list, and the method ordevice may also include other steps or units.

A flowchart is used in the present disclosure to explain the operationperformed by the system according to the embodiment of the presentdisclosure. It should be understood that the foregoing or followingoperations may be not necessarily performed exactly in order. Instead,each step may be processed in reverse or simultaneously. Moreover, otheroperations may also be added into these procedures, or one or more stepsmay be removed from these procedures.

During the molding process of pressure vessels, a filament windingprocess is one of the important links. The filament winding process isto extend out filament bundle through a multi-filar guide and fixedlywind the filament bundle on a surface of a workpiece to be wound (orreferred to as a workpiece).

FIG. 1 is a schematic diagram of a helical winding device according tosome embodiments of the present disclosure.

FIG. 2 is a schematic diagram of a helical winding device according toanother embodiments of the present disclosure.

FIG. 3 is an axonometric view of a helical winding device in a directionaccording to some embodiments of the present disclosure.

FIG. 4 is a sectional view of plane A in FIG. 3 according to someembodiments of the present disclosure.

As shown in FIG. 4 , in some embodiments, a high-efficiency filamenthelical winding device may include a frame body 1 provided with athrough-hole 100 and a plurality of multi-filar guides, the plurality ofmulti-filar guides distributed in a circumference along a center of thethrough-hole 100 may be rotationally connected to the frame body 1, andfilament may be extended out from each multi-filar guide 2 in theplurality of multi-filar guides, and the frame body 1 may be providedwith a first driving mechanism 3 that drives each multi-filar guide 2 torotate.

In some embodiments, the plurality of multi-filar guides distributed inthe circumference along the center of the through-hole 100 may berotationally connected to the frame body, filament may be extended outfrom each multi-filar guide 2 in the plurality of multi-filar guides,and the extended filaments may be evenly distributed on an outer surfaceof the pressure vessel with a helical shape, each multi-filar guide 2may be driven to rotate to change an angle of the filament to achievewinding via the first driving mechanism 3 and rotation and movement ofthe pressure vessel. The high-efficiency filament helical winding deviceis used to wind, which may ensure that the filaments is distributedevenly and no overlapping or crossing exists between the filaments.Thus, while ensuring the winding efficiency, it may effectively reducethe use of the filaments.

The frame body may be used to support, connect, and fix components. Insome embodiments, the frame body may be provided with the through-hole.

The multi-filar guide may be a component used to drag the filaments. Thefilaments may include glass filaments, carbon filaments, polyamidefilaments, etc. The multi-filar guide may adopt a plurality ofstructural designs. As shown in FIG. 4 , in some embodiments, themulti-filar guide 2 may be a hollow rod with two openings at both ends,the filament may enter the hollow rod from an opening at one end andextend out from other opening at the other end, the other end of thehollow rod may be flat, and a shape of the other opening at the otherend may be the same as a cross-section shape of the filament. The flatshape of the other opening may prevent deformation of the multiplefilament bundles in the plurality of multi-filar guides. The shape ofthe other opening may be the same as the cross-section shape of thefilament, which may ensure that the filaments pass smoothly and thefilaments are driven to rotate. The cross-shape of common filament isapproximately rectangular, thus the shape of the other opening at theother end is also rectangular. Through the structural arrangements, thefilaments may be driven to rotate accordingly while the plurality ofmulti-filar guides rotate. A gap between the other opening at the otherend and the filaments may ensure the filaments passing through. Ofcourse, a smaller gap may be designed on premise of ensuring thefilaments passing through.

As shown in FIGS. 2 and 4 , in some embodiments, when using the filamenthelical winding device, the workpiece to be wound may pass through thethrough-hole 100 on the frame body 1 and be fixed by a correspondingfixing device.

The fixing device may be used to fix the workpiece to be wound and drivethe workpiece to rotate and move. The fixing device may be implementedwith a plurality of structures, for example, a chunk and a moveablebase, the chuck being set on the moveable base, the workpiece beingclamped by the chunk and driven to rotate, and the chunk and theworkpiece being driven to move by the moveable base.

As shown in FIGS. 1 and 2 , in some embodiments, when winding using thefilament helical winding device, filament bundles may be extended outfrom a creel and tension may be controlled by an existing tensioncontroller, each filament bundle may pass through a correspondingmulti-filar guide, a single filament bundle extended out from eachmulti-filar guide 2 may gather into multiple filaments, the multiplefilaments bundles may be evenly distributed on the surface of theworkpiece, and no overlapping or crossing exists between the filaments.Then the multiple filament bundles may be helically wound on the surfaceof the workpiece simultaneously through rotation and movement of theworkpiece and rotation of each multi-filar guide 2. More descriptionsregarding the multi-filar guide 2 may be found elsewhere in the presentdisclosure, e.g. FIG. 4 and its relevant descriptions thereof.

The tension controller (e.g., a mechanical tension controller, anelectronic tension controller, etc.) may be used to regulate tension ofthe filaments bundle.

As shown in FIG. 4 , in some embodiments, the multi-filar guide 2 may bedesigned as a telescopic structure, the multi-filar guide 2 may beexpanded and contracted according to a shape change of the workpiece(e.g., an inner pot of the pressure vessel), thereby ensuring that thefilaments may well fit an outside surface of the workpiece to furtherimprove the winding effect.

FIG. 5 is a partial enlarged view of part A in FIG. 4 according to someembodiments of the present disclosure.

FIG. 6 is a partial enlargement view of part B in FIG. 4 according tosome embodiments of the present disclosure.

As shown in FIG. 5 , in some embodiments, the multi-filar guide 2 may berotationally connected to the frame body 1 through a coupling sleeve 7,the coupling sleeve 7 may be rotationally connected to the frame body 1,the multi-filar guide 2 may be slidably connected to the coupling sleeve7, the first drive mechanism 3 may be connected to the coupling sleeve 7to drive the multi-filar guide 2 to rotate. In some embodiments, thehelical winding device may further include a telescopic mechanism 8 thatdrives the multi-filar guide 2 to slide along the coupling sleeve 7.Therefore, the coupling sleeve 7 may ensure the multi-filar guide 2rotates and moves along the coupling sleeve 7 simultaneously.

The coupling sleeve may be a sleeve-shaped component used to connect twocomponents, for example, a rebar straight thread coupling sleeve, adriving shaft coupling sleeve, a wire coupling sleeve, etc. The couplingsleeve and the multi-filar guide may be set with a plurality ofstructures. In some embodiments, the coupling sleeve 7 may be providedwith a protrusion, the multi-filar guide 2 may be provided with acorresponding keyway, which achieves sliding with cooperation betweenthe keyway and the protrusion. In some embodiments, an inner hole of thecoupling sleeve 7 may be set as a prismatic hole and an outside of themulti-filar guide 2 may be set as a prismatic shape to achieve sliding.

In some embodiments, a first driving gear 3013 may be fixed on thecoupling sleeve 7.

FIG. 7 is an axonometric view of the helical winding device in anotherdirection according to some embodiments of the present disclosure. FIG.8 is a sectional view of plane B in FIG. 7 according to some embodimentsof the present disclosure. FIG. 9 is a partial enlargement view of partC in FIG. 8 according to some embodiments of the present disclosure.FIG. 10 is a partial enlargement view of part D in FIG. 8 according tosome embodiments of the present disclosure.

The first driving mechanism may be used to drive a component to rotate.As shown in FIG. 7 , in some embodiments, the first driving mechanism 3may include a first driving element 300 and a first gear transmissionmechanism 301, the first driving element 300 may be connected to eachmulti-filar guide 2 through the first gear transmission mechanism 301 todrive each multi-filar guide 2 to rotate. More descriptions regardingthe multi-filar guide 2 and first driving mechanism 3 may be foundelsewhere in the present disclosure, e.g. FIG. 5 and the relevantdescriptions thereof.

The first driving element may be an element used for driving, such as aservo motor, a hydraulic motor, etc.

The first gear transmission mechanism may be a transmission mechanismusing gears, such as a reducer gearbox, a gear transmission, etc. Thestructure settings of the first gear transmission mechanism 301 maydrive each multi-filar guide 2 to rotate, the structure of which issimply and the setting of which is reasonable.

In some embodiments, each multi-filar guide 102 may be ensured to rotatesmoothly and precisely through a way of gear transmission.

As shown in FIG. 9 , in some embodiments, the first gear transmissionmechanism may include a gear ring 3010 and a first connecting column3011. More descriptions regarding the first gear ring 3010 may be foundelsewhere in the present disclosure, e.g. FIG. 5 and its relevantdescriptions thereof.

The first gear may be used to connect and mesh with the gear to driverotation. As shown in FIG. 5 , in some embodiments, the first gear ring2010 may be a double gear ring, inner gear of which may be meshed with afirst connecting gear 3012, the first driving element 300 may be meshedwith outer gear through a first worm 6 or the gears, the first worm 6may be rotationally connected to the frame body 1. More descriptionsregarding the first worm 6 may be found elsewhere in the presentdisclosure, e.g. FIG. 7 and its relevant descriptions thereof.

The first connecting gear may be a component that connects elements bymeshing. In some embodiments, the first connecting gear 3012 may bemeshed with the inner gears of the double gear ring of the first gearring 3010.

The first worm may achieve transmission between two intersecting axesusing gears and other similar elements. In some embodiments, the firstworm 6 may be meshed with the outer gears of the double gear ring of thefirst gear ring 3010.

As shown in FIG. 10 , in some embodiments, the first gear ring 3010 maybe rotationally connected to the frame body 1, and the first drivingelement 300 may be connected to the first gear ring 3010 to drive thefirst gear ring 3010 to rotate.

The first connecting column may be a cylindrical element used to connecttwo components. As shown in FIG. 10 , in some embodiments, a pluralityof the first connecting columns 3011 may be rotationally connected tothe frame body 1, and each multi-filar guide 2 may be connected to afirst connecting column 3011.

As shown in FIG. 10 , in some embodiments, the first connecting column3011 may be driven to rotate through the rotation of the first gear ring3010, the multi-filar guide 2 may be driven to rotate by the firstconnecting column 3011, one end of the first connecting column 3011 maybe provided with a first connecting gear 3012 meshing with the firstgear ring 3010, the other end of the connecting column 3011 may beprovided with a first transmission gear 3014 meshing with the firstdriving gear 3013 arranged on the multi-filar guide 2. More descriptionsregarding the gear ring 3010 may be found elsewhere in the presentdisclosure, e.g. FIG. 5 and its relevant descriptions thereof.

The first transmission gear may be transmitted with gear meshing. Insome embodiments, the multi-filar guide 2 may be driven to rotate by thefirst connecting column 3011 through the first transmission gear 3014 onthe first connecting column 3011 meshing with the first driving gear3013 on the multi-filar guide 2.

The first driving gear may drive the driving components to rotate bygear meshing. In some embodiments, the first driving gear 3013 on themulti-filar guide 2 may drive the multi-filar guide 2 to rotate bymeshing with the first transmission gear 3014 of the first connectingcolumn 3011.

As shown in FIG. 10 , in some embodiments, when rotating, the first gearring 3010 may drive the first connecting column 3011 to rotate throughmeshing with the first connecting gear 3012 at one end of the firstconnecting column 3011, the rotation of the first connecting column 3010may drive the multi-filar guide 2 to rotate through the firsttransmission gear 3014 at other end of first connecting column 3011meshing with the first driving gear 3013 arranged on the multi-filarguide 2. Therefore, when rotating, the first gear ring 3010 may driveall the multi-filar guides to rotate. More descriptions regarding themulti-filar guide 2 and the first transmission gear 3014 may be foundelsewhere in the present disclosure, e.g. FIG. 5 and the relevantdescriptions thereof.

In some embodiments, the first driving mechanism 3 may be connected tothe coupling sleeve 7 to drive the multi-filar guide 2 to rotate. Insome embodiments, the filament helical winding device may furtherinclude the telescopic mechanism 8 that drives each multi-filar guide 2to slide along the coupling sleeve 7. More descriptions regarding themulti-filar guide 2 and first driving mechanism 3 may be found elsewherein the present disclosure, e.g. FIG. 4 and the relevant descriptionsthereof. More descriptions regarding the connecting sleeve 7 may befound elsewhere in the present disclosure, e.g. FIG. 5 and its relevantdescriptions thereof. More descriptions regarding the telescopicmechanism 8 may be found elsewhere in the present disclosure, e.g. FIG.3 and its relevant descriptions thereof.

FIG. 11 is a structural diagram of a shifting fork mechanism accordingto some embodiments of the present disclosure.

The telescopic mechanism may be a mechanism driven by expansion andcontraction. In some embodiments, the telescopic mechanism 8 may beimplemented with a plurality of structures, which may achieve theexpansion and contraction of the multi-filar guide 102, for example,setting a plurality of telescopic cylinders to drive the multi-filarguide 2 to expand and contract through expansion and contraction of thetelescopic cylinders. As shown in FIG. 5 , in some embodiments, thetelescopic mechanism 8 may include a plurality of shifting folkmechanisms and a second driving mechanism 801, and each multi-filarguide 2 may be connected to a shifting folk mechanism 800. Moredescriptions regarding the telescopic mechanism 8 may be found elsewherein the present disclosure, e.g. FIG. 8 and its relevant descriptionsthereof. Each multi-filar guide may be driven to slide along thecoupling sleeve through the telescopic mechanism, so that themulti-filar guide may not only rotate but also expand and contract, themulti-filar guide may control the expansion and contraction of themulti-filar guide according to the shape change of the pressure vessel,thereby causing the filaments better fitting the pressure vessel toimprove the winding effect.

The shifting fork mechanism may be used to control the multi-filar guideto move. As shown in FIG. 11 , in some embodiments, the shifting forkmechanism 800 may include a shifting fork 8000 and a guide rod 8001, theguide rod 8001 may be fixedly connected to the frame body 1, theshifting fork 8000 may be slidable connected to the guide rod 8001, andan end of the shifting fork 8000 may be rotationally connected to themulti-filar guide 2.

In some embodiments, a clamp 10 may be fixed on the multi-filar guide 2and provided with a groove connected to the shifting fork 8000, an endof which may be clamped into the groove to rotationally connected to theclamp 10, which may cause the connection between the shifting fork 8000and the multi-filar guide 2 more convenient.

In some embodiments, the structure settings of the shifting fork 8000may facilitate controlling movement of the multi-filar guide 2 withoutaffecting rotation of the multi-filar guide 2. Moreover, compared tosetting the plurality of telescopic cylinders, the shifting forks issimpler and more reasonable, which may reduce settings of unnecessarypower.

The second driving mechanism may be a mechanism used to drive the otherpart in the filament helical winding device, which differs from thefirst driving mechanism. As shown in FIG. 5 , in some embodiments, thesecond driving mechanism 801 may include a second driving element 8010,a second gear transmission mechanism 8011, and a lead screw and nutmechanism 8012. More descriptions regarding the second driving mechanism801 may be found elsewhere in the present disclosure, e.g. FIG. 4 andits relevant descriptions thereof. More descriptions regarding thesecond driving element 8010 may be found elsewhere in the presentdisclosure, e.g. FIG. 3 and its relevant descriptions thereof.

In some embodiments, the second driving mechanism 801 may be connectedto the shifting fork 8000 to drive the shifting fork 8000 to slide alonga guide rod 8001.

The lead screw and nut mechanism may be a mechanism that convertsrotation into movement. As shown in FIG. 5 , in some embodiments, eachshifting fork 8000 may be connected to a lead screw and nut mechanism8012 in a plurality of lead screw and nut mechanisms, an end of the leadscrew 80121 in the lead screw and nut mechanism 8012 may be fixedlyconnected to the shifting fork 8000, and the nut 80120 in the lead screwand nut mechanism 8012 may be rotationally connected to the frame body1.

The second driving element may be an element used in the second drivingmechanism, which differs from the first driving element, for example, aservo motor, a hydraulic motor, etc. As shown in FIG. 5 , in someembodiments, the second driving element 8010 may drive the second gearring 80110 to rotate through gears or a second worm 9 meshing with gearson the slewing bearing 4.

In some embodiments, the second driving element 8010 may be fixed on theframe body 1 instead of moving with the second gear ring 80110, therebyensuring stability in the process of driving.

The second worm may be an element used in the second driving mechanismto achieve transmission between two intersecting axes by meshing, whichdiffers from the first worm. In some embodiments, the second worm 9 maybe meshed with the gears on the slewing bearing 4.

The slewing bearing may be a transmission component that needs to makerelative rotation movement between two objects and bear axial force,radial force, and tipping moment at the same time. The slewing bearingmay include an inner and outer ring, a rolling element, etc. In someembodiments, the slewing bearing may be provided with gears.

The second gear transmission mechanism may be a transmission mechanismusing gears, which differs from the first gear transmission mechanism.As shown in FIG. 5 , in some embodiments, the second gear transmissionmechanism 8011 may include the second gear ring 80110 and a secondconnecting column 80111.

The second gear ring may be another component used to connect to gearsand mesh with gears to drive gears to rotate, which differs from thefirst gear ring. In some embodiments, the second gear 80110 may berotationally connected to the frame body 1 and the second gear ring80110 may be driven to rotate through the second driving element 8010.

The second connecting column may be a cylindrical element used toconnect two components, which differs from the first connecting column.In some embodiments, the plurality of second connecting columns 8011 maybe rotationally connected to the frame body 1, and each lead screw andnut mechanism 8012 may be connected to a second connecting column 80111.

As shown in FIG. 5 , in some embodiments, the second connecting column80111 may be driven to rotate through the rotation of the second gearring 80110, the second connecting column 80111 may drive the multi-filarguide 2 to expand and contract, an end of the second connecting column80111 may be provided with a second connecting gear 80112 meshing withthe second gear ring 80110, and other end of the second connectingcolumn 80111 may be provided with a second transmission gear 80113meshing with outer gears of the nut 80120.

The helical winding devices may achieve control separately throughchanging structure and drive corresponding multi-filar guides to expandand contract for performing winding operation according to a size of theworkpiece, thereby achieving variable driving.

As shown in FIG. 5 , in some embodiments, the second gear ring 80110 maybe rotationally connected to the frame body 1 through the slewingbearing 4, the second gear ring 80110 may be slidably connected to theslewing bearing 4, and a third driving mechanism 5 may be arrangedbetween the second gear ring 80110 and the slewing bearing 4, which maydrive the second gear ring 80110 to slide axially. As shown in FIG. 6 ,the plurality of second connecting columns 80111 may be divided into atleast two groups, the second gear ring 80110 may be meshed with secondconnecting gears 80112 on one or more groups of second connectingcolumns 80111 through the movement of the second gear ring 80110 todrive corresponding multi-filar guides to expand and contract, and thesecond driving element 8010 may be connected to the slewing bearing 4.In some embodiments, the number of multi-filar guides used for windingmay be selected according to a size of the pressure vessel. Therefore,according to the size of the pressure vessel, the required multi-filarguides may be controlled to extend out for performing winding operationso as to achieve variable driving.

The third driving mechanism may be other components used in the drivingdevice, which differs from the first driving mechanism and the seconddriving mechanism. In some embodiments, the third driving mechanism maybe arranged between the second gear ring 80110 and the slewing bearing 4to drive the second gear ring to slide axially.

As shown in FIG. 5 , in some embodiments, an inner ring 400 of theslewing bearing 4 may be fixedly connected to the frame body 1, an outergear ring 401 of the slewing bearing 4 may be slidably connected to thesecond gear ring 80110, or vice versa. The slidably connection may beachieved through the settings of a corresponding sliding groove, acorresponding sliding column 402, and more structures. For example, theouter gear ring 401 may be provided with the sliding column 402, thesecond gear ring 80110 may be connected to the sliding column 402 andthe second gear ring 80110 may be provided with corresponding connectinghole. The third driving mechanism 5 may be various elements withtelescopic function, such as an electric telescopic cylinder, a screwelevator, etc. Taking the electric telescopic cylinder as an example, acylinder of the electric telescopic cylinder may be fixedly connected tothe second gear ring 80110, a rod body of the electric telescopiccylinder may be fixed with the outer gear ring 401, and the sliding ofthe second gear ring 80110 may be achieved through the expanding andcontraction of the rod body. More descriptions regarding the thirddriving mechanism 5 may be found elsewhere in the present disclosure,e.g. FIG. 3 and its relevant descriptions thereof.

As shown in FIG. 5 , in some embodiments, a number of the secondconnecting column 80111 may be set as 60, which may be divided intothree groups, and each group may include 20 connecting columns (foranother example, the second connecting columns may also be evenlydivided). When moving, the second connecting gear ring 801110 may bemeshed with the second connecting gear 80112 on the second connectingcolumns 80111 of the first group (the number of the second connectingcolumns in the first group being 20) to drive 20 second connectingcolumns 80111 to rotate, that is, 20 multi-filar guides may be driven toextend out for winding the workpiece with a small size. When continuingto move, the second gear ring 801110 may be meshed with the secondconnecting gear 80112 on the second connecting columns 80111 of twogroups (e.g., the first group and second group) to drive 40 secondconnecting columns 80111 to rotate, that is, 40 multi-filar guides maybe driven to extend out for winding the workpiece with a medium size.When continuing to move, the second gear ring 80110 may be meshed withthe second connecting gear 80112 on the second connecting columns 8011of three groups (all the groups) to drive 60 second connecting columnsto rotate, that is, 60 multi-filar guides may be driven to extend outfor winding the workpiece with a large size.

As shown in FIG. 5 , in some embodiments, an axial length of the secondconnecting gear 80112 on second connecting columns 80111 in each groupmay be set to be different, and the axial length of the secondconnecting gear 80112 in each group may gradually increase or decreaseto ensure that the second gear ring 80110 may be meshed with thecorresponding second connecting gear 80112 during the movement, so as tochange (increase or decrease) the number of the second connecting gearmeshing with the second gear ring. Of course, the above functions may berealized by changing the setting position of the second connecting gear80112 in each group.

As shown in FIG. 5 , in some embodiments, a number of the secondconnecting columns may be set as 60, which may be divided into threegroups. The axial length of the second connecting gear 80112 on thesecond connecting column 80111 in the first group is larger than theaxial length of the second connecting gear 80112 on the secondconnecting column 80111 in the second group, and the axial length of thesecond connecting gear 80112 on the second connecting column 80111 inthe second group is larger than the axial length of the secondconnecting gear 80112 on the second connecting column 80111 in the thirdgroup. Therefore, when moving, the second gear ring may be meshed withthe second connecting gear 80112 in the first group, when continuing tomove, the second gear ring may be meshed with the second connecting gear80112 in the first and second group simultaneously, and when continuingto move, the second gear ring 80110 may be meshed with the secondconnecting gear 80112 in the first, second, and third groupssimultaneously.

The second gear ring 80110 is not only driven to move through a thirddriving mechanism 5, but also driven to rotate through the seconddriving element 8010. Therefore, the methods may be adopted asfollowing: appropriately increasing the axial length of the second gearring 80110 to ensure that it may be connected to a second drivingelement 8010 no matter how the second gear ring moves, and the slidablyconnection between the second driving element 8010 and the slewingbearing 4 or the frame body 1 to ensure that the second driving element8010 may be moved with the second gear ring 80110. In conclusion, thesecond gear ring 80110 is connected to the second driving element 8010to drive the second gear ring 80110 to rotate via the plurality ofstructures.

FIG. 12 is a schematic diagram of a control system according to someembodiments of the present disclosure.

As shown in FIG. 12 , in some embodiments, the helical winding devicemay include a control system for achieving the entire automaticoperation of the helical winding device. The control system may includean industrial computer, a controller, a displacement sensor, and anangle sensor. The controller may be connected to the industrialcomputer, the displacement sensor, the second driving element, the anglesensor, and the first driving element. The first driving element and thesecond driving element may be controlled by sending instructions to thecontroller from the industrial computer through measuring the expansionand contraction of the multi-filar guide using the displacement sensor,measuring the rotation of the multi-filar guide using the angle sensor.

As shown in FIGS. 1 and 2 , in some embodiments, corresponding sensorsmay be set to control other components involved in the spiral winding.For example, the filaments extended out from the creel may enter themulti-filar guide via a tension controller, thus a corresponding sensormay be set at the tension controller to control the tension, thecorresponding displacement sensor and angle sensor may be set at thefixing device for fixing the workpiece to control the rotation andmovement of the workpiece.

In some embodiments, the corresponding control system may be developedto achieve automation according to the actual situation.

In some embodiments, the control system may include the controller, thedisplacement sensor, the angle sensor, and the displacement sensor andthe angle sensor may communicate with the controller. The displacementsensor may measure the expansion and contraction of the multi-filarguide, and the angle sensor may measure the rotation of the multi-filarguide. The controller may receive information detected from thedisplacement sensor and the angle sensor and send the controlinstructions to the multi-filar guide to correspondingly control themovement of the multi-filar guide based on the process of the detectedinformation.

In some embodiments, the control system may predict position of themulti-filar guide based on the parameters of the workpiece, thedisplacement information of the multi-filar guide, and the angleinformation of the multi-filar guide. In some embodiments, the positionof the multi-filar guide may be predicted based on a prediction model,which may be a machine learning model. An input of the prediction modelmay include the parameters of the workpiece, and the displacementinformation and the angel information of the current and the previous(or a plurality of time point previous) multi-filar guide, and an outputof the prediction model may include the position information of thesubsequent (i.e., time points in the future) multi-filar guide.

In some embodiments, the control system may also determine a riskprobability of unqualified winding based on the predicted positioninformation of multi-filar guide determined by the prediction model, andthe unqualified winding may include filament winding stack, unevenspacing between the filaments, etc.

In some embodiments, the prediction model may include a feature layer, asequence layer, and a first prediction layer. An input of the featurelayer may include the parameters of the workpiece, and an output of thefeature layer may be a feature vector of the workpiece. An input of thesequence layer may be the displacement information and angel informationof the current and the previous (or the plurality of time pointsprevious) multi-filar guide, and an output of the sequence layer may bea sequence feature of the position. An input of the first predictionlayer may be the feature vector of the workpiece and the sequencefeature of the position, and an output of the first prediction layer maybe subsequent position information of the multi-filar guide. In someembodiments, the prediction model may further include a secondprediction layer, an input of the second prediction layer may be thesequence feature of the position and the subsequence positioninformation of the multi-filar guide output from the first predictionlayer, and an output of the second prediction layer may be a riskprobability of unqualified winding.

In some embodiments, the prediction model may be obtained from aplurality of first training samples with the labels. The first trainingsamples may be parameters of the sample workpiece, the displacementinformation and angle information of the sample multi-filar guide at aplurality of time points. The labels of the first training samples maybe whether the sample winding is qualified and the position of thesample multi-filar guide at the time point after the plurality of timepoints. For example, a plurality of labeled first training samples maybe input into an initial prediction model, a loss function may beconstructed through the labels and the prediction results of the initialprediction model, parameters of the prediction model may be updatedbased on the iterations of the loss function, and a training of theinitial prediction model may be completed when the loss function of theinitial prediction model satisfies a preset condition. The presetcondition may include a convergence of the loss function, a number ofthe iterations that reaches a threshold, etc. In some embodiments, thefirst training samples may be obtained based on historical productiondata of the device.

In some embodiments, in response to determination that the riskprobability of the unqualified winding is greater than a threshold, thecontrol system may send early warning information to remind manualadjustment. In some embodiments, the control system may determineadjustment parameters of the multi-filar guide by an adjustment modeland send the control instructions to the multi-filar guide based on theadjustment parameters.

In some embodiments, the adjustment model is a machine learning model.An input of the adjustment model may be operation parameters of themulti-filar guide after adjustment, parameters of the workpiece, thedisplacement information and angel information of the current andprevious (or a plurality of time points previous) multi-filar guide, andan output of the adjustment model may be the risk probability ofunqualified winding. The corresponding adjustment parameters that therisk probability of unqualified winding is less than the threshold maybe generated to the control instructions.

In some embodiments, the adjustment model may be obtained from a secondtraining samples and the labels. The second training samples may includethe operation parameters of the sample multi-filar guide, the parametersof the sample workpiece, and the displacement information and angleinformation of the sample multi-filar guide at the plurality of timepoints. The labels of the second training samples may be whether thesample winding is qualified. In some embodiments, the second trainingsample may be obtained based on historical production data of thedevice.

The basic concepts have been described above, apparently, in detail, aswill be described above, and do not constitute a limitation of thepresent disclosure. Although there is no clear explanation here, thoseskilled in the art may make various modifications, improvements, andcorrections for the present disclosure. This type of modifications,improvements, and corrections are recommended in the present disclosure,so such corrections, improvements and amendments still belong to thespirit and scope of the exemplary embodiment of the present disclosure.

Meanwhile, the present disclosure uses specific words to describeembodiments of the present specification. For example, the terms “oneembodiment,” “an embodiment,” and/or “some embodiments” mean that aparticular feature, structure or characteristic described in connectionwith the embodiment is included in at least one embodiment of thepresent disclosure. Therefore, it is emphasized and should beappreciated that two or more references to “an embodiment” or “oneembodiment” or “an alternative embodiment” in various portions of thisspecification are not necessarily all referring to the same embodiment.Further, certain features, structures, or features of one or moreembodiments of the present disclosure may be combined.

Moreover, unless the claims are clearly stated, the sequence of thepresent disclosure, the use of the digital letters, or the use of othernames, is not used to define the order of the present specificationprocesses and methods. Although some embodiments of the inventioncurrently considered useful have been discussed through various examplesin the above disclosure, it should be understood that such details areonly for the purpose of illustration, and the additional claims are notlimited to the disclosed embodiments. On the contrary, the claims areintended to cover all amendments and equivalent combinations in linewith the essence and scope of the embodiments of the specification. Forexample, although the implementation of various components describedabove may be embodied in a hardware device, it may also be implementedas a software only solution, e.g., an installation on an existing serveror mobile device.

Similarly, it should be noted that in order to simplify the expressiondisclosed in the present disclosure and help the understanding of one ormore invention embodiments, in the previous description of theembodiments of the present disclosure, a variety of features aresometimes combined into one embodiment, drawings or description thereof.However, the present disclosure method does not mean that the object ofthe present disclosure needs more features than those mentioned in theclaims. In fact, the features of the embodiment are less than all thefeatures of the single embodiment disclosed above.

In some embodiments, numbers describing the number of components andattributes are used. It should be understood that such numbers used forthe description of embodiments are corrected by the modifiers “about”,“approximate” or “substantially” in some examples. Unless otherwisestated, “about,” “approximate,” or “substantially” may indicate ±20%variation of the value it describes. Accordingly, in some embodiments,the numerical parameters set forth in the description and attachedclaims are approximations that may vary depending upon the desiredproperties sought to be obtained by a particular embodiment. In someembodiments, the numerical parameters should consider the specifiedsignificant digits and adopt the method of general digit reservation.Although the numerical domains and parameters used in the presentdisclosure are used to confirm its range breadth, in the specificembodiment, the settings of such values are as accurate as possiblewithin the feasible range.

Contents of each of patents, patent applications, publications of patentapplications, and other materials, such as articles, books,specifications, publications, documents, etc., referenced herein arehereby incorporated by reference, Except for the application historydocumentation of the present specification or conflict, there is also anexcept for documents (currently or after the present disclosure) in thewidest range of documents (currently or later). It should be noted thatif the description, definition, and/or terms used in the appendedmaterials of the present disclosure are inconsistent or conflicts withthe content described in the present disclosure, the use of thedescription, definition and/or terms of the present disclosure shallprevail.

Finally, it should be understood that the embodiments described in thepresent disclosure are intended to illustrate the principles of theembodiments of the present disclosure. Other deformations may alsobelong to the scope of this disclosure. Thus, as an example, notlimited, the alternative configuration of the present disclosureembodiment may be consistent with the teachings of the presentdisclosure. Accordingly, the embodiments of the present disclosure arenot limited to the embodiments of the present disclosure clearlydescribed and introduced.

What is claimed is:
 1. A filament helical winding device, comprising aframe body, a plurality of multi-filar guides, and a telescopicmechanism, wherein the frame body is provided with a first drivingmechanism that drives each multi-filar guide to rotate; and thetelescopic mechanism drives each multi-filar guide to slide; and thetelescopic mechanism includes a plurality of shifting fork mechanismsand a second driving mechanism, each multi-filar guide is connected to ashifting fork mechanism in the plurality of shifting fork mechanisms,and the second driving mechanism is connected to the shifting fork todrive the shifting fork to drive each multi-filar guide to slide.
 2. Thefilament helical winding device of claim 1, wherein the frame body isprovided with a through-hole, the plurality of multi-filar guidesdistributed in a circumference along a center of the through-hole arerotationally connected to the frame body, and filament is extended outfrom each multi-filar guide in the plurality of multi-filar guides. 3.The filament helical winding device of claim 1, wherein each multi-filarguide is rotationally connected to the frame body through a couplingsleeve, the coupling sleeve is rotationally connected to the frame body,each multi-filar guide is slidably connected to the coupling sleeve. 4.The filament helical winding device of claim 3, wherein the firstdriving mechanism is connected to the coupling sleeve to drive eachmulti-filar guide to rotate.
 5. The filament helical winding device ofclaim 4, wherein the second driving mechanism drives each multi-filarguide to slide along the coupling sleeve.
 6. The filament helicalwinding device of claim 1, wherein the shifting fork mechanism includesa shifting fork and a guide rod, the guide rod is fixedly connected tothe frame body, the shifting fork is slidably connected to the guiderod, and one end of the shifting fork is rotationally connected to themulti-filar guide.
 7. The filament helical winding device of claim 6,wherein the second driving mechanism is connected to the shifting forkto drive the shifting fork to slide along the guide rod.
 8. The filamenthelical winding device of claim 1, wherein the second driving mechanismincludes a second driving element, a second gear transmission mechanism,and a plurality of lead screw and nut mechanisms, each shifting fork isconnected to a lead screw and nut mechanism, one end of lead screw inthe lead screw and nut mechanism is fixedly connected to the shiftingfork, and nut in the lead screw and nut mechanism is rotationallyconnected to the frame body.
 9. The filament helical winding device ofclaim 8, wherein the second gear transmission mechanism includes asecond gear ring and a plurality of second connecting columns.
 10. Thefilament helical winding devices of claim 9, wherein the second gearring is rotationally connected to the frame body, and the second gearring is driven to rotate through the second driving element.
 11. Thefilament helical winding device of claim 9, wherein the plurality ofsecond connecting columns are rotationally connected to the frame body,each lead screw and nut mechanism is connected to a second connectingcolumn in the plurality of second connecting columns, the secondconnecting column is driven to rotate through rotation of the secondgear ring, the second connecting column drives the multi-filar guide toexpand and contract, and one end of the second connecting column isprovided with a second connecting gear meshing with the second gearring, and the other end of the second connecting column is provided witha second transmission gear meshing with the external gears of the nut.12. The filament helical winding device of claim 11, wherein the secondgear ring is rotationally connected to the frame body through a slewingbearing, the second gear ring is slidably connected to the slewingbearing, a third driving mechanism is arranged between the second gearring and the slewing bearing, the second gear ring is driven to slideaxially through the third driving mechanism, the plurality of secondconnecting columns is divided into at least two groups, the second gearring is meshed with second connecting gears on one or more groups ofsecond connecting columns through movement of the second gear ring todrive corresponding multi-filar guide to expand and contract, and thesecond driving element is connected to the slewing bearing.
 13. Thefilament helical winding device of claim 1, wherein the multi-filarguide is a hollow rod with two openings at both ends, the filamententers the hollow rod from an opening at one end and extends out fromother opening at the other end, a shape of the other opening of theother end of the hollow rod is same as a cross-section shape of thefilament.
 14. The filament helical winding device of claim 13, whereinthe other end of the hollow rod is flat.
 15. The filament helicalwinding device of claim 1, wherein the first driving mechanism includesa first driving element and a first gear transmission mechanism, and thefirst driving element is connected to each multi-filar guide through thefirst gear transmission mechanism to drive each multi-filar guide torotate.
 16. The filament helical winding device of claim 15, wherein thefirst gear transmission mechanism includes a first gear ring and aplurality of first connecting columns.
 17. The filament helical windingdevice of claim 16, wherein the first gear ring is rotationallyconnected to the frame body, and the first driving element is connectedto the first gear ring to drive the first gear ring to rotate.
 18. Thefilament helical winding device of claim 16, wherein the plurality offirst connecting columns are rotationally connected to the frame body,each multi-filar guide is connected to a first connecting column in theplurality of first connecting columns, the first connecting column isdriven to rotate through rotation of the first gear ring, the firstconnecting column drives the multi-filar guide to rotate, one end of thefirst connecting column is provided with a first connecting gear meshingwith the first gear ring, and the other end of the first connectingcolumn is provided with a first transmission gear meshing with a firstdriving gear on the multi-filar guide.
 19. The filament helical windingdevice of claim 16, wherein the first gear ring is a double gear ring,inner gear of which is meshed with the first connecting gear, outer gearof which is meshed with the first driving element through a first wormor gears, and the first worm is rotationally connected to the framebody.
 20. The filament helical winding device of claim 12, wherein thesecond driving element is meshed with gears of the slewing bearingthrough gears or a second worm to drive the second gear ring to rotate.